Improvement in wood pavements



L. CA'LDELL.

Patented March26.1872.

elevation of a row of blocks.

UNITED STATES QFFICE.

LUTHER CALDWELL, OF ELMIBA, NEW YORK.

Specification forming part of Letters Patent No. 125,019, dated March 26, 1872.

Specification describing a certain Improve ment in Wood Pavements,in vented by LUTHER CALDWELL, of Elmira, in the county of Chemun g and State of New York.

The object of this invention is to so construct the paving-blocks that when put down to form a pavement they will support one another against vertical displacement; and to this end my improvement consists in forming a tapering tenon upon each end of the blocks, made to taper in reverse directions and in such manner that the tenons of the blocks of one row will interlock with the tenons of the blocks of the adjoining rows.

Figure 1 is a plan view of a section of pavement constructed of my improved blocks. Fig. 2 is a transverse section thereof. Fig. 3 is an Fig. 4 is a similar elevation, showing the end of the blocks opposite to that seen in Fig. 3. Fig. 5 represents two blocks in perspective.

The same letters of reference are used in all the figures in the designation of identical parts.-

The drawing illustrates, most clearly in Figs. 3 and 4, the preferable .form of paving-blocks, which have one vertical and one slanting side, so that, in arranging them in rows with their bases touching one another, suitable spaces are formed between them for the reception of concrete. These blocks may be out in pairs out of rectangular pieces of timber without waste. The blocks may, however, have any other configuration in cross-section than that shown. Upon the one end of each block A is cut a narrow tenon, B, which, being widest at the base of the block, gradually tapers toward the top and upon the other end of the block is formed a broad tenon, C, also tapering, but in a direction reverse to the tenonB upon the opposite end. The sides of the tenons B and C should be cut so as to match. If preferred the tenons B and C may be made of equal width, but they must always taper in reverse directions.

In constructing a pavement from these blocks they are arranged in longitudinal rows upon the roadway, either upon a sand or board foundation, with like tenons all facing in the same direction, and the tenons of one row entering between the tenons of the adjoining rows.

What I claim as my invention, and desire to secure by Letters Patent, is

A paving-block, A, formed with tenons B and C, which are tapered in reverse directions, the blocks when laid dividing the surface of the street into longitudinal rows of consecu tive blocks and intervening spaces, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LUTHER CALDWELL.

Witnesses:

D. P. HOLLOWAY, B. Enw. J. EILs. 

